Rivet-set holder for riveting-hammers.



A. C. DAVIS. Rws SET HoLnE R FOR RIVETING HAMMERS.

APPLICATUN HLED DEC. 4. 19X5.

Patented Jan. 9, 1917.

UNITED STATES- PATENT OFFICE.

enanos. o. Devis, oncnxsronnm annex. zone. amr-snr nonnen ron Riverina-nemmeno.

Bp'otcetlon ot Letters Patent.

Patented Jan. 9, 1917.

application 'alec December 4, ma. serial no. amai.

residing at Cristobal, Panama, Canal Zeile, v

have inventedcertainfnew and usefulImprovements in Rivet-Set Holders for Riveting-Ha'mmers, of which the following 1s a V specification.

My invention relates to a; rivet set holder for riveting hammers o erated by compressed air or steam, an my object is to rovide a safe and effective means for holdlng the rivet set in position 1n the nose of the hammer barrel while leaving it free for ready attachment to or detachment therefrom and without impedin'g or in any manner interfering with the action of'the hammer.

In the use of riveting hammersfrequent and serious `accidents result from the insecuro and crude manner in which the rivet sets are tied or secured to the hammer to pre vent their loss and I have devised a holding means which vwill avoid such accidents and which will prevent the loss of the rivet sets and hammer plungers which is constantly occurring.

According to my invention, I mount on the hammer barrel and on the rivet set collars or like means which are connected together to permit the rivet set -auch reaonable longitudinal movement. mayv be normally incident to' its service rwhieh will not itfm'it the rivet Set to e disen raged imm the end of the hamgier. The co ar on the rivet Asot forms" pre "rably a springclamp which can be readily 'opened is theprovisio of n rivet set, ho

to permit the convenient removai and refirtherriovel' feature of. n

4 ugh-ineens whchseapa le of bein tornado, ut hummer as tofshi" 1.9 .5614138 im to thmost convenient position when workin in oloseplaces. y Q M y invention further wmprisealthenovel y invention detailsof constraetionof dreaming clamp dollar -for the rivet. aatahdfdl" Gll4 man!! of attadiing the collar to ylitlfrivet set ':1 i

and hammer.

ment volf- .my Invention, reference 1S. inode Y to thentaeompnnying drawings.wherein:.

)iii illustra-tivo of the profeet-jetl'. embodi-V tions of a hammer equipped with my proved holding means for the rivet set. Fig. 3 is a detail view enlarged on the lfastening member for the rivet set clamp, shown .in detached position between the parted ends of the clamp.

Similar reference numerals refer to similar parts throughout the drawings.

According to the preferred embodiment of my invention illustrated in the drawings, I provide the barrel 1 of the hammer, at a point adjacent to its nose with an annular groove 2 adapted to receive an annular 'y shoulder 3 raised on the inner face of a split clamp ring 4. This barrel clamp is formed in halves hinged together and having outturned perforated lugs 5 at their open ends adapted to receive a bolt 6,v the ends'` of which are threaded to receive the nut 7. 0n opposite sides ,of this clamp 4 Ifprovide Ya pair of perforated lugs 8 through 'which the reduced ends 9.0i a painof 'rods 10 are passed freely and extend suiciently beyond the flugs to receive, each, n coiled spring Il and a nut 12 threaded th'ereon. This yielding connection rovides for a -limited axial movement of tie rods toward the barrel nose in which is mounted a rivet set of any Ordinar construction having a Shank-14 which ts into the barrelvnoseyand having about its head and annularjgroo` e l5,"the side walls of which pre. erablyipeinward, whereas the groove '2 Kittie( barx'iel is' rectangular in cross section. A clamp collar 16 is provided 'tofemb de the rivet-set! its inner faire hein shapld the groove 15, Y two parts 'which arejpmvidedgwith';.interiolfed Perforated lags i? a aan hinged ends w ichare ,pivotaliy conneetedlaf 'a hinge -pm IB havingits" ends lnujadle to afford a permanenti connection; One side of the clamp nos n its' free enti, aaaiitturned lug 19 provi" 2o, mi ig yond theflugrlik ,The-o ierl V h clam has. par einen.. aangaat-eis, posa to between, Moana lo@ 121. andhas also.' :icaritofg lt l.t`

p .to atsnagly 'Into 111s clamp -lis formed in e1 within-pair ofbol-.t'gholes n.11 21 formare-m1 extansienfbef lug 23 and having at its other end a pair of threaded Shanks 26 adapted to be passed through the holes 2O of the lugs 19 and to receive aboutl them coiled springs 27. disposed between the lug 19 and the nuts 2 which are screwed on the outer ends of the ,Shanks 26: A Each section of the clamp 'f is provided with' a perforated lug 2 through which the outer reduced ends 3;0 of the rods 1() are passed and bradded to make 1 a firm connection between the rods and the clamp. Preferably the clamp 4 is formed `in two parts which are hinged together by .a pin Bland 1n applying the collar 4 1t @should not be caused to g'rip'the barrelv tightly but VA`to lit in the groove 2 free to Yturn-about the saine.

The y engagement of the shoulder 3- in the groove yin the barrel is intended to zoinakeea .connection which willrevent the sleevefrom slipping axially o the barrel *while .leaving itvree to turn about the barrel y ysofthat the rods 10 can be adjusted to the most convenient position for driving rivets in"a closeA place. A tubular shield or cover 1 A 32 .for the spring encircled end 9 of each rod f 10 extends from the outer ends ofthe collari" 4 lto a point below the end 9 ofthe rod, xthus v. preventing the operators hand being struck 301er pinched b etwenthe vibrating arms and.

` \""the"clalnp lugs '19. These covers are made 1 wfjst tothe collar vby tap screws 33.` If it bef 1 not desired to permit the collar` 4to turn i about the barrel yit can be made Afast to the 'barrel in any suitable manner, butit is de-A A=sirahle to make they whole connections adejustable 'about the'v barrel so thatl they can :be shifted into the most convenient operat ing position when in close places. By 40 mounting the guards upon the barrel collar, the whole vequipment is detachable and can applied to the present types of barrels "In o eriation, havingl applied` theclamp `1.'to'therivetset, the ends of .the :rods 10 arefpassedthroughlthe lu 8 of the clamv 4 which has beenI-mounte 1on the barre 1 .with itsannnlsr shoulder 3 interftted 'rn the "und'the shields 32 are `applied toitheollar 4. "Theriveting hammenis then, used 1n the;-

normal manner-,fthe clamp 16$beingfree to follow the normal;` movements of ther rivet set 'responeivetothe impact of; thepllmger and being yet always held .against 4 1051sV lBoth clampsareafree-to be swung about the e0l tool-iso `.anto b thero'ds where they `w11l not fererwit ldriving rivets in, close .f'To insert a'new rivet set orto nef placefoneiwl', it. is only necessary to draw l thel-connecting member 2t against the tenuickly remov y whic the `fastenin member 1s snapped back to position an the tool is ready for Lservice What I claim as new and desire to secure by tters Patent, is:- A y 1. n a` rivetn hammer, a barrei having an annular shou der near its outer end, a rivet set having an annular groove a hinged collar mounted forrotation in, e oove on the rivet set, yieldable and q ck fextachable means to connectlthe free ends of said collar, a. hinged collar 'mounted for rotation on the barrel in'engagement with the shoulder thereon, connecting'rods for the collars which are made fast in therivetset collar iund are loosely connected to 'the barrel vco1- lar, andsprings engagin the looseends of said connecting rods an' acting thereon to draw the collars together, the hinges in said collars being disposed n the same side of the hammer, andsaid rivet =set collar being adapted to be' opened to release the rivet set without disiulrbin the barrel collar or" the connection of sai rods thereto.

2. In a riveting hammer Ia plunger barrel Vhaving a circumferential groove" turned withstraight side" walls, a rivet set having a. clrcurn. erential `groove, a ,split collar y1eld1ngly clampedy 'about theY rivet set and interfitting with the groove therein, a collar havmg a right angledv shoulder 'adapted to `fit in the barrel goove'ineansito clanip the collar in interlocked relation withi said groove but free to turnda'boutthe barrel, rods having their reducedends made fast to the rivet se't collarat one'l end, and yieldmgly conrlected t-o the barrel 'collar at the other end, and guards for the yieldable connections between the rods and barrel collar.V

Mwithout substantial modification thereof` y, I' 'and; withoutginiaking them 4more cumberl incomeN f 3. In a 'riveting hammer, V afplunger barrel having a rectangular annuler grooveiturned 'in its exterior wallnear its hose,A a rivet set mountedlwin the barrel and hav-ing an annular gro slo mg Walls2 a clamp collar adapted to inte t with sind rivetset groove' ayieldable icl xnpncnnzectwnf, for' said colar, a barrel colar herum a. rectanguliut shoulder which interdits w1,-'thelrarrel groove, nieans to the colhtmapoutl the arrel vvltilef.leav1 m 1t free t tml, marabout, Iuge` un the co are, rods riucedlat their outer nds and branded. .te the` lugaA oni thhriyet set "collar, g1 the reduced tads of i" m, 1 i i t Y r. .theebngrel collar, nuts to ad), st tlie tenslon on the r springs, 'and' tubular gurds detachably con dto ,theybarrel c ll'arjandlfine 'turned therein'vvith outwardly 65 sion of its springs 27 until it can be diseng, "immovaiile 4axiallyr ofthe' barrel and perfo- Il mg rods having their inner ends reduced and inserted through the perforations of In testimony whereof Iax my signaaid memers sllringsdsuounling said reture. 5 used en s o t e'ro s on said memnuts on the rods formiyiig end seats for ARTHUR C DAVIS' said springs, and guards to surround said Witness: members and the spring inclosed ends of the NoMm WELSH.

rated, a. rivet set engaging means compris befonnected thereto, substantially as descrl 19 

